Is Alkali Blue vegan?

Alkali Blue

Vegan

Alkali Blue (CI 42750) is a synthetic triarylmethane acid dye used in textile dyeing and printing, particularly for silk and wool. It is also known as Alkali Blue 4B, Alkali Blue 5B, and Acid Blue 110.

Also known as Acid Blue 110, Alkali Blue 4B, Alkali Blue 5B
CAS number 62152-67-4
CI number CI 42750
Last reviewed 3 June 2026

Sources

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